Finding the Fourth Proportional to 3,128,177,378.28, 4,316,928,994.98 and 1,718,611,611.24
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Solution
The fourth proportional to 3,128,177,378.28, 4,316,928,994.98 and 1,718,611,611.24 is: 2,371,708,313.98
Step by Step Solution
- Step 1: Write the proportion equation
3,128,177,378.28 : 4,316,928,994.98 = 1,718,611,611.24 : x - Step 2: Convert to fraction form
3,128,177,378.28/4,316,928,994.98 = 1,718,611,611.24/x - Step 3: Cross multiply
3,128,177,378.28x = 4,316,928,994.98 × 1,718,611,611.24 - Step 4: Simplify right side
3,128,177,378.28x = 7,419,124,295,671,250,944 - Step 5: Solve for x
x = 7,419,124,295,671,250,944/3,128,177,378.28 - Step 6: Final answer
x = 2,371,708,313.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.